Sinn U2 EZM 5 on H-Link Bracelet

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• Verified Watch Owner Reviews (14 reviews)
SKU: SI-168

Watch Brand: Sinn

Sinn North America

Mechanical diver's watch with two time zones
• Watch diameter (mm): 44.0
• Watch height (mm): 15.5
• Lug width (mm): 22
• Lug to lug (mm): 50.5
• Weight - head only (grams): 114
• Water resistance: 2,000 meters
• Case back: Solid
• Case finish: Matte
• Case metal: Submarine steel
• Dial color: Black
• Front crystal: Sapphire
• Tegimented: Bezel only
• Inert gas: Filled
• Calibre: SW330-1
• Copper sulphate: Capsule
• Movement: Automatic mechanical
• Strap or bracelet: Bracelet
• Manufacturer's limited warranty: 3 years
• Warranty service: RGM or Sinn

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WatchBuys Direct Price: $3,200.00
Availability: Temporarily Sold Out

Sinn U2 EZM 5 on Bracelet
Sinn U2 EZM 5 on H-Link Bracelet

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Product Details

Step up to the EZM 5 Professional Series with the Sinn U2. The technology and design elements used to create the Sinn U2 go far beyond standards used at most watch companies.

The Sinn U2 contains all the great features of the Sinn U1, but adds the following:

  • Second time zone complication indicated by a red tipped hour hand
  • Increased water resistance to 2,000 meters
  • Special inert gas mixture
  • Two copper sulfate absorbing capsules
  • 4.6 mm thick sapphire crystal

The Sinn U2 case is made from the same German steel that is also used in the construction of the outer hull of submarines. The steel was procured by Sinn from a steel supplier to Emden GmbH, one of Germanys North Sea shipbuilding yards who construct submarines from the very same steel.

This special steel is also amagnetic which means that is does not have magnetic properties and cannot itself become magnetized. The watch movement itself is protected from magnetic fields up to 4,800 A/m.

Because of the special steel used from the submarine steel manufacturer, the case resists the effects of exposure to salt water and salt water environments.

The uni-directional ratchet operated rotating bezel is also milled from this submarine steel which is Tegimented. The indices are machined directly into the bezel without the use of bezel inserts, which can corrode or come loose at deep depths.

The international testing lab of Germanischen Lloyd has tested the U2, and determined that the watch can be certified as water resistant to 2,000 meters. This same firm tests submarines for their ability to withstand the effects of underwater use.

The Sinn U2 has full UTC functionality through the use of an additional short red tipped hour hand which can be set independently from the primary time zone and indicates the second time zone using a 24 hour display. Screw down crown.

The U2 features an inert gas filled cavity with two copper sulphate humidity absorbing capsules, which are visible at 6.

Matte black dial with date at 3, Super Luminova on hands and markers, and striking red seconds hand complete the design.

This watch is fitted with a Sinn stainless steel H-Link bracelet with locking clasp (not quick adjust).
Frequently purchased with this item:

Watch specifications are provided by the respective watch manufacturer and/or other sources. Although we use best efforts to provide accurate information, we reserve the right to make corrections when advised of specification changes and/or content errors.

WatchBuys is the official and authorized North American distributor and importer for Sinn watches.

When you purchase your new Sinn watch from WatchBuys, you'll not only get a finely engineered timepiece with excellent value for money, you'll also benefit from the WatchBuys Sinn Advantage.

WatchBuys Advantage #1

Because we are the official and authorized North American Sinn distributor and importer, your name and watch serial number will be automatically registered in our database for a Sinn manufacturer's limited warranty which we pass through.

This means that should your watch require service during the Sinn manufacturer's limited warranty period, service will be provided by Sinn in Germany when you return your watch to them. This Sinn manufacturer's limited warranty is transferable to subsequent owners as allowed by Sinn.

You are responsible for paying the shipping charges to Sinn, and all repairs that Sinn approves under its warranty are at no charge. Sinn will also pay the return shipping charges to the address you specify.

The Sinn manufacturer's limited warranty period is as follows:
  • Watches in the EZM Series: 3 years
  • Watches marked AR containing inert gas: 3 years
  • Watches in the DIAPAL Series: 5 years
  • All other Sinn models: 2 years

WatchBuys Advantage #2

As an added benefit to those who purchase Sinn watches from WatchBuys, you may choose to have your warranty repairs serviced through our US Sinn Authorized Service Center, RGM Watch Service located in Mount Joy, Pennsylvania. This added benefit saves our clients the time and effort of returning their watches to Germany for repair. This service is transferable to subsequent owners who purchase directly from the original registered owner.

Please note that you are responsible for paying shipping and insurance charges for sending your watch to RGM. Once they reach your watch in the service queue they will determine which repairs are covered under Sinn's warranty.

It is important to note that oil-filled quartz Sinn watches must be repaired in Germany (EZM 2, Hydro and UX series). If your watch meets one of these conditions and requires service under warranty, please click here for instructions on returning your watch to Sinn in Germany.

WatchBuys Advantage #3

Your watch will be repaired at no cost to you other than shipping charges to either Sinn or RGM during the warranty period. Sinn watches purchased through the "grey market" (non-authorized sources) may carry no warranty from Sinn. Sinn watches purchased through authorized overseas retailers are governed by the warranty policies of those dealers and/or Sinn, and typically must be sent to either the overseas dealer or Germany for repair.

WatchBuys Advantage #4

You'll be wearing your new Sinn watch soon after your order is placed since we stock Sinn watches and ship free using UPS Air. Plus, since we are located in the United States, there are no "hidden charges" for shipments to US residents as is the case with most overseas dealers. Such charges can add up to 15% to the cost of your new watch, and include credit card surcharges, foreign exchange credit card bank fees, import duties and taxes, and custom's broker charges.

WatchBuys Advantage #5

WatchBuys offers a comprehensive return policy with no restocking fees to US residents. Overseas dealers, including those involved in the grey market, typically don't offer a return policy, and if they do, returning a watch under the policy is both complicated and expensive due to import/export and custom's requirements. Restocking fees are also common and may range up to 15%.

Learn more about our return policies.

WatchBuys Advantage #6

WatchBuys is pleased to accept payments through PayPal, debit and credit cards. We charge no surcharges to use credit or debit cards, and because we are based in the United States your US card is charged in US dollars with no conversion or exchange rate fees.

We also accept payments from PayPal and charge no surcharges.

Please note that to pay by credit card, debit card or PayPal your account and/or card must be issued by US or Canadian financial institution and billed to a confirmed US or Canadian address.

WatchBuys Advantage #7

When you purchase your new Sinn watch from WatchBuys, you'll earn WatchPoint Rewards which accumulate and may be redeemed against future purchases.

Sinn watches feature a number of cutting edge technologies, many of which are unique to Sinn. Please note that not all Sinn watches, including the watch on this page, use all of these Sinn technologies.

Among the more notable Sinn technologies are:

Tegimented Hardened Cases

Many Sinn watches are fitted with Tegimented cases produced in-house by Sinn's case making affiliated company in Glashutte, Germany.

Standard steel used by most watch companies has a hardness of between 200 and 240 HV (Hardness Vickers is a common scale used to measure material hardness). The Tegiment process produces a hardness of at least 1,200 Vickers which is five times harder than standard steel (and on some Sinn models up to nine times harder than standard steel).

The Tegiment process is not a coating consisting of a foreign material; instead the steel itself that has been hardened using a special engineering process that creates a hardened barrier. The base material is a type of stainless steel also used for surgical implants, and the stainless steel resistance to corrosion is further improved by the Tegiment hardening process.

The primary advantages to a Tegimented case are extreme resistance to scratches and other case abrasions, as well as increased resistance to corrosion.

Please note that certain Sinn watches are fully Tegimented (case, bezel) while others are Tegimented only on the bezel. Use the links below to view both categories.

  • View Sinn watches with fully Tegimented cases.

  • View Sinn watches with Tegimented bezels only.

Dehumidification Technology

A number of Sinn models feature cases filled with inert gas. Sinn has found that filling the case with inert gas can help prevent the introduction of moisture and humidity to the case, as well as provide a more stable environment for the oils that lubricate the movement.

The proper care of any mechanical watch movement mandates that these oils maintain both their viscosity and lubrication properties.

  • View Sinn watches with dehumidification technology.

Copper Sulphate Capsules

A number Sinn models use one or more copper sulphate capsules to absorb humidity trapped inside the case. Over time these capsules will gradually turn dark blue indicating that humidity has been absorbed.

The primary benefit to these copper sulphate capsules is a more dry and stable environment for both the movement and the lubricating oils. Together with Sinn's inert gas treatment these capsules form the basis of Sinn's Dry Hold Technology.

This technology not only provides a more stable environment for the movement, but also prevents fogging of the crystal when going from hot to cold environments or from humid to non-humid conditions (such air conditioned buildings).

  • View Sinn watches with copper sulphate capsules.

Extreme Antimagnetic Protection

Magnetism can cause dramatic swings in the timekeeping of a mechanical watch movement. People are often exposed to magnetic fields without even being aware - frequent high altitude flying, metal detectors, audio and video equipment, medical equipment and computer equipment can all cause problems with magnetism.

Many Sinn watches offer extreme protection against magnetism up to 80,000 A/m. Sinn achieves these results using a number of different technologies, including special case and case back construction, soft iron components in the case and protective rings surrounding the movement.

  • View Sinn watches with extreme antimagnetic protection.

DIAPAL Oil Free Escapement

Sinn caused quite a stir when they first released their DIAPAL technology. Beginning in 1995, Sinn began work to create an oil free escapement. With any mechanical watch movement, the aging of oil, especially in the escapement can create long term problems for that movement. Additionally, as movement oil ages, required service intervals become more frequent.

Sinn's early analysis to this problem provided a quick solution (at least in theory) - if you don't use oil, it can't age. The process began by exchanging the ruby escapements for diamonds (the word "DIAPAL" derives from the German name for diamond escapements) in order to achieve the desired effect. The designation stuck, even though today Sinn works with solutions taken from advanced nanotechnology rather than diamonds.

The result is a movement that proves so reliable that Sinn offers an unprecedented five year warranty on their DIAPAL watches.

  • View Sinn watches featuring the DIAPAL oil free escapement.

Hydro Oil Filled Technology

Sinn has developed a technology termed "Hydro" in which the entire watch case is filled with oil. Watches using this technology are based on quartz rather than mechanical movements.

By using this type of movement, Sinn is able to fill the watch with oil, which has the joint affect of greatly enhancing the readability of the dial and time from any angle (including under water), and increasing the water resistance of the watch even at great depths.

  • View Sinn watches with Hydro Oil Filled technology.

Submarine Steel

Sinn has created a line of watches featuring cases made from German submarine steel (the U Series). The steel was procured by Sinn from a steel supplier to Emden GmbH, one of Germany's North Sea shipbuilding yards who construct submarines from the very same steel.

Because of the special steel used from the submarine steelmanufacturer, the case resists the effects of exposure to salt waterand salt water environments.

These cases are produced in-house by Sinn's case making affiliated company in Glashutte, Germany.

This special steel is also amagnetic which means that is does not have magnetic properties and cannot itself become magnetized. The watch movement itself is protected from magnetic fields up to 4,800 A/m.

  • View Sinn watches built from German submarine steel.

EZM Mission Timers

Sinn is a partner for manufacturing watches for the German Special Forces, including SWAT, Customs, FBI, helicopter police, GSG9 and other units.

Beginning with the now highly collectible (and valuable) Sinn EZM 1, Sinn has grown this collection to some of the most durable and highly functional watches made and they remain among the most popular in the collection.

  • View Sinn watches in the EZM Series.

Watch Reviews From Verified WatchBuys Buyers
100% • Verified Watch Owner Reviews100% • Verified Watch Owner Reviews (14 reviews)

Highest Recommendations

"Highest Recommendations"

Verified Watch Owner Comments: Superb watch - exactly what I was looking for, excellent service and impeccable packaging/delivery from WatchBuys.

One more happy owner here!

Sinn U2

"Sinn U2"

Verified Watch Owner Comments: U2 is all you'd expect from Sinn. This is now my daily watch - I love it. Even though it is 44mm - it wears on a (kind of) small side - at least comparing to my other divers. Which is not a bad thing. Crystal is not flat - and that takes time to get used to (for me). the style of German watches.

As for watchbuys - phenomenal service - lightning speed delivery, excellent communication - thank you!!

The watch for when the zombies learn SCUBA

"The watch for when the zombies learn SCUBA"

Verified Watch Owner Comments: Absolute tank of a watch. Feels like you could use it to beat a giant squid to death after bailing out of a sub. Incredibly legible dial. Build and finish quality are off the charts. After the first week it was 6 seconds fast.

It’s keeping better time than my Omega. My only complaint would be that I with it had a half link for the bracelet to make it just a hair more adjustable. The bracelet uses tiny Allen screws and is super easy to remove and replace links and there is a micro adjustment on the clasp, but a half link would make sizing even more flexible. Overall I love it.

As Good As It Gets, A watch guy's watch.

"As Good As It Gets, A watch guy's watch."

Verified Watch Owner Comments: If your Rolex Submariner needed a dive watch, this is the watch is would get.

Outstanding piece of equipment. When you wear a Sinn you let everyone know that you know what you are doing. A watch guy's watch. Impeccable quality. This watch has some heft to it, like any good tool. I can't write enough about this watch. The hands line up perfectly, I could go on and on.

Special note regarding Watchbuys service. First rate.

Customer service called me to notify me that the watch would be shipped and will be arriving on a particular date. However, I would be out of town, so they shipped it over night. Not much else you can write. Thanks.

New addition!

"New addition!"

Verified Watch Owner Comments: I have often thought of getting the U2, but held off, instead getting a UX, then Arktis 103, an EZM3, LE U1, then an EZM 10, then I found an EZM 1.1, well... the Arktis was stolen and later, the UX met with a disastrous fate. SO, it was a good reason to finally acquire the U2.

WOW! The face and the subtle dome of the crystal are just amazing! Truly impressive! A real stand-out in an excellent 'watch drawer'. I can't believe I waited so long to get the U2!

Fantastic Watch!

"Fantastic Watch!"

Verified Watch Owner Comments: I love the U2 and am very pleased with my purchase. It's my 2nd Sinn watch as I also own an 856 UTC. It's well machined, is very accurate (within COSC specs), and it looks great.

As a professional outdoor landscape photographer in the mountains, my work watches are regularly exposed to water, rather extreme temperature changes, altitude changes on a regular basis, physical abuse and more, and this watch appears to be built to take it all without a hiccup. The 4-o'clock crown is a big plus and helps tremendously with comfort, a feature I wish more watches had.

Overall I am thrilled with it, it's definitely a keeper!

Sinn U2

"Sinn U2"

Verified Watch Owner Comments: Just a lovely watch - as long as my wife doesn't ask me too much. And I'd like to buy another Sinn when I can afford it!

Sinn U2

"Sinn U2"

Verified Watch Owner Comments: One of the best divers made.

The dial is very legible and has the tegimented technology on the bezel, which is the most scratch prone part of the case.

U2 EZM 5

"U2 EZM 5"

Verified Watch Owner Comments: Just got my new Sinn. really nice and solid. German engineering all the way.

Originally bought the U1 but then decided on the U2 EZM 5. Liked the look better and the two time zones is a big plus for me. Purchased the rubber strap and changed out the bands as soon as I got it. Wanted the rubber strap model but did not want to wait a month to get it. The black strap really makes the face and body look great.

You cannot go wrong with one of these. I will update in a year to let you know how its doing. All black tagimented model next......

U2 beautiful heavy metal

"U2 beautiful heavy metal"

Verified Watch Owner Comments: I've owned this watch a little over a year. It's easliy one of my favorite 1 or 2 watches.

Bulletproof case, extemely accurate time keeping. The sword hands are very elegant on such a robust and well built watch. The heft of the watch is very pleasing. I've been able to read the lume as late as 5-6 a.m. in the morning.

This is a classic dive watch.

U2 - Some kind of Watch

"U2 - Some kind of Watch"

Verified Watch Owner Comments:

Have had my new U2 for exactly one week. Have had plenty of high quality mechanical watches, but this one is the most accurate...has lost 3/4th of a second in one week!
Looks terrific too. Unfortunately, the bracelet is not up to the same quality as the watch itself, but overall, it's terrific.

U2 is a great value

"U2 is a great value"

Verified Watch Owner Comments: I originally started with the U1 but quickly found the lack of domed crystal a problem and started to view the U2 with more interest. From the very moment that I looked upon the U2 I was impressed. The dial layout and visual representation is an added bonus with very minimal strain put on the eyes as you quickly look for the time.   The Lume is sufficient to last all night but it will lose most of its power within the first couple of hours. If you want to read teh time in a movie, it might be hard but in the middle of the night, no problems. The UTC/GMT hand is of a proper subdued look so as to not detract from normal timekeeping but once the eyes focus on it, becomes quite clear to the viewer and is easy to read. The bezel is very well done with only 60 min. increments but the markers all line up with the minute tracks on the dial.   The bracelet as others have stated is the one weak point on the U2 and it isn't because of the construction but lack of construction pertaini... - more details

U2 is Awesome

"U2 is Awesome"

Verified Watch Owner Comments: I own a Sinn U2 and I can't praise it enough.

The watch is as rugged as can be. It is almost two years old and looks as if it just came out of the box brand new. I have never seen a more robust, scratch-resistant timepiece. It's hefty but very well-balanced, and extremely attractive in appearance. In contrast to the watch itself, the bracelet does seems to be a bit susceptible to minor scratching, but no more so than any other bracelet I've seen. Indeed, there is a "fine tuning" provision to adjust the length of the bracelet. It's in the form of three small springbar holes on one portion of the deployant clasp.

The U2 has convinced me that Sinn watches are among the very best values in fine timepieces available today. I HIGHLY recommend this watch! It's fantastic.

U2 EZM 5

"U2 EZM 5"

Verified Watch Owner Comments:

This is probably the highest tech dive watch on the market today. Very elite. The watch is rather heavy, but is balanced very well, so the weight is not noticeable.
The U2 is the most accurate mechanical watch I own. It has averaged about -1 to -2 secs a day. The only complaint I have is with the bracelet. It does not have a very wide range of fine tuning adjustment (there are no "half" links), and is rather easily scratched. A more scratch resistant finish on the bracelet would be a big improvement.
All in all, I am satisfied with this purchase, and plan on buying another Sinn in the very near future.